You and Sasuke never got along, it was just common knowledge around those who knew you, your classmates in the academy, your teammates of team 7, hell, even your families at one point.
It wasn't the fact that you couldn't get along, which you couldn't, by the way. Fate just kept on pushing you two together even after you both told fate it was a no by fighting at every opportunity. Your parents were bestfriends? Well you pulled his hair and stole his toys as kids. Classmates at the academy and teamed up at every project? Couldn't agree on anything and had to do it individually. Teammates on team 7? Getting distracted at every turn at fighting amongst yourselves.
It wasn't your fault, right? He was just so... him. And it was infuriating! You didn't know what to do, the way he kept his head high and avoided everyone just seemed wrong to you. A part of you even felt pity for him after the massacre, he was only 8, but then he'd changed, and closed himself off from everyone.
Everyone slowly grew tired of the fighting, even Kakashi-sensei, which is why he placed you on this task. A shared chore, cleaning up the old Konoha Academy storehouse. God this place was old, and dusty. Let's hope you don't have allergies.
"Don't tell me you just sat around the whole time. Did you at least start?" Asked Sasuke, arriving at the storehouse to see you sitting outside, waiting for him. So what if he was 5 minutes late? Late is late.